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iTrader: (33)

I am curious which stand alone ems do you consider to be the best for the 20b? For me price doesnt matter as much as user friendliness and tuneability.

Evil Aviator

The best EMS is the MoTeC M880, and Roger Mandeville is the best MoTeC dealer for anybody with a rotary engine.
http://www.motec.com
http://www.racingsportscars.com/driv...ville-USA.html

Roger Mandeville
350 Simuel Rd
Spartanburg, SC 29301
Voice: 864-582-0038
Fax: 864-585-3353
Email: rmandeville@mindspring.com

If you need a dealer closer to you in California, see Racing Beat or Tri Point Engineering.

20BENZ

From my experience they are all very good.

I have spent a little time working in shops that do tuning and generally found that whoever it is doing the tuning should chose whichever ECU they are most comfortable with.

As long as the ECU has the required number of drivers to run the 20B and enough outputs to suit any additional functions, then it all comes down to the actual tune.

An A/F of 12 is the same whether it is coming from injectors fired by a MoTeC or a Microtech.

The only real exception here is if the resolution is too large to accurately tune with enormous injectors.

Cheers,
Sam.

Evil Aviator

IMO a big part of "user friendliness" is the support you get with your product.

While Autronic does produce quality systems, the US dealers will not sell any of their products unless their own technicians perform the installation, the company threatens automotive websites which host discussions of their products, and it has been my experience that the company is generally not very friendly to the rotary engine novice community. While this is not a good do-it-yourself EMS brand, there are some good Autronic dealers/tuners on this forum who will most assuredly install a top-notch system in your car.

MoTeC has a long record of running record-setting rotary engines at the top tier of auto racing, and their support team has helped me a great deal with my car even though I do not own a MoTeC EMS.

... which goes to show that sometimes a cheapie EMS with few features can be the best solution for average folks.

I totally agree. A well-tuned cheapie EMS will run an engine better than a horribly-tuned high-end EMS.

I disagree. A high-end EMS is capable of finely trimming the ignition and fuel injection of each rotor which allows it to control the engine better. A static A/F reading of 12 is NOT the same between a high-end EMS and a cheapie EMS. Besides, static AFR tuning is only for the base map. Add in the transients and other factors like flat shifting, boost control, traction control, etc., and there is simply no comparison between MoTeC and Microtech. Sure, a low-budget novice will not care about any of this as long as the engine runs somewhat well, but the original poster specified tuneability over price.

hwnd

iTrader: (4)

Good point

wrong - if the cpu inside the ECU (powerfc for example) is on the slower side then things like logging (rate), etc suffer. other things like "quality" come into play here too.
not all coil (ign & injector) drivers are the same.

isn't that o2 sensor and/or amplifier specific?

not exactly. i think the application is key at this point.
a combo of 1600cc & 2400cc would be an awful mix for a street car (unless it runs e85+).. i think its all purpose-based on this topic.

but from your overall post - you're saying "an ecu is an ecu, everything else is in the tune". while that statement is correct to some degree, it really fails over all.

if a standalone is a standalone (all the same) then I could have saved myself $4k - but not everything is equal in this dept.

aldearacing

If money is not an issue, I would go with motec. If is going to a 20B a Motec M600 would do the work just fine, you'll have all the advantage of ignition timing split. We have work with several motec's in Puerto Rico, see us at http://www.aponteracing.com.

Francisco Aponte Rivera
Team Principal
Aponte Racing Team P.R.
www.aponteracing.com

20BENZ

Ok, first of all I'm not here to try and suggest that a MoTeC is the same as a Microtech - I have a MoTeC running one of my engines!! however, the question was very unspecific in asking what is the 'best'... best for features? best for resolution? best for processor speed? best value.........????


Whilst you are right here, other than some drivers being either inconsistent due to a fault or not working at all, the difference is so small it is almost immeasurable.

My main point here was that in a street car (not an out and out race car chasing tenths of a second) it is nigh on impossible to tell what kind of ECU is running the engine whilst driving it and nearly as hard on the dyno...

Thus the most important point being that the tuner is familiar enough with the chosen ECU to be able to get the most out of it. I have seen some big dollar ECU equipped cars drive like rubbish and others with very, very cheap home brand style ECUs drive like magic all because the tuner was very familiar with it and able to get the most out of it.

As a tuner myself, If price isn't a major concern, I always head towards the MoTeC. However, that doesn't mean it is always the 'best' choice.

If by 'best', 'user friendliness and tuneability' is what someone is after then it really comes down to personal preference anyway.

hwnd

iTrader: (4)

I think you guys say MoTec because of the $$$.

The hardware of the M800 isn't all that great & the software isn't anything to boast about. On top of that, the enabled standard options/features is pretty low and god damn costly to enable... There are better/faster/stronger computers but we're really looking at a whole other level of computers.

Back on topic, I've had a lot of success with AEM's... hardware isn't fancy but it'll stomp a mud hole in just about any other ECU in its price range (lb for lb).

Chaotic_FC

i would say that autronic would be your best bet.. Not only is it cheaper than systems it compairs to (such as motec or EFI technology) but it has more to offer, such as autotune, and a lot of experienced rotary tuners.

bewtew

iTrader: (7)

Motecs are soo expensive...i run a Microtech LT-16..

hwnd

iTrader: (4)

I like the AEM & Wolf3D for a cheaper.
FAST/EFI would be in there also (does real time calculation opposed to the above mentioned ecus which only do a simple table look-up).

Pi / Pectel remains my most fav ecu company of all time.

dandevin

For funtions and ease of use per dollar you cannot beat Microtech. They are used on many of the fastest drag rotaries in the world including /eddie Colon's 6 second world record car. Motec is great stuff but hyper expensive and does not use many of the factory sensors as the Microtech does. Motec is mostly used by the big budget roadcourse racers.

imtiaz

iTrader: (14)

what about the haltech e11 or platinum or even electromotive tech gt.. where these 2 takes care of the waste spark.. so you have sequential spark..

illdrift

Have you considered the link ecu's?

http://www.linkecu.com/products/engi...ecus/g4-xtreme

Not sure how popular they are in america.
I sold my microtech to go with a link g4 storm on my 13b jc. I plan on running the link g4 extreme on my 20b jc. I don't have much experience with ecu's, i wired this in myself and road tuned it. I think they're preferred over microtech's here in NZ. Great value and so many more options you can fiddle with. You can atleast download the software to have a look for yourself:

http://www.linkecu.com/support/dland...Link-downloads


This local rb30 240z is seeing good results running a link g4, he's into the 7's now. There's other articles around on the net:
http://www.ripsltd.com/RIPS-in-print/articles5.html


Oh and one thing i love about this ecu, unsure if others have this option. You fill out a map of target a/f ratio's, go for a drive in your car, hold the car at certain rpm and load points, and the computer will modify it's map to correct it's a/f ratio. You can specify how accurate the computer is with this road rolling tuning, you can specify to go within whatever decimal accurateness, how long you must spend in a tables cell (to allow the wideband time to react, etc), and a few other options.

dandevin

I don't understand the comment on Haltech or electromotive. The microtech, and all of the others that I know of, fire the secondary plugs.

dandevin

I had never heard of this product before but I just followed your link and took a quick look at the G-4 Link system and it looks quite impressive. Definitely worth considering. Are there any US dealers that anyone knows?

illdrift

http://www.linkecu.com/dealers/dealersusa

illdrift

http://finelineimports.net/index.php...roducts_id=563 gives you an idea on price "Link G4 Extreme Wire In ECU
Starting at: $1,975.00"